 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.core.internal.runtime;

 import java.io.IOException ;
 import java.net.URL ;
 import java.net.URLConnection ;
 import org.eclipse.core.internal.boot.PlatformURLConnection;
 import org.eclipse.core.internal.boot.PlatformURLHandler;
 import org.eclipse.core.runtime.FileLocator;
 import org.eclipse.osgi.service.urlconversion.URLConverter;

 /**
  * Class which implements the URLConverter service. Manages conversion of a
  * platform: URL to one with a more well known protocol.
  *
  * @since 3.2
  */
 public class PlatformURLConverter implements URLConverter {

     /* (non-Javadoc)
      * @see org.eclipse.osgi.service.urlconversion.URLConverter#toFileURL(java.net.URL)
      */
     public URL toFileURL(URL url) throws IOException {
         URLConnection connection = url.openConnection();
         if (!(connection instanceof PlatformURLConnection))
             return url;
         URL result = ((PlatformURLConnection) connection).getURLAsLocal();
         // if we have a bundle*: URL we should try to convert it
 if (!result.getProtocol().startsWith(PlatformURLHandler.BUNDLE))
             return result;
         return FileLocator.toFileURL(result);
     }

     /* (non-Javadoc)
      * @see org.eclipse.osgi.service.urlconversion.URLConverter#resolve(java.net.URL)
      */
     public URL resolve(URL url) throws IOException {
         URLConnection connection = url.openConnection();
         if (!(connection instanceof PlatformURLConnection))
             return url;
         URL result = ((PlatformURLConnection) connection).getResolvedURL();
         // if we have a bundle*: URL we should try to convert it
 if (!result.getProtocol().startsWith(PlatformURLHandler.BUNDLE))
             return result;
         return FileLocator.resolve(result);
     }
 }

